later this morning, at the white house, president obama and vice president joe biden will discuss gun control with police chiefs and sheriffs. it's part of the push by the obama administration for new policies to curb gun violence. president obama and secretary of state hillary clinton appeared together in an interview to talk about their unusual partnership. it was president obama's idea for the joint interview on "60 minutes." the president said he wanted the opportunity to publicly thank clinton for her service as secretary of state as she prepares to step down. >> i want the country to appreciate just what an extraordinary role she's played during the course of my administration, and a lot of successes we've had internationally have been because of her hard work. >> many people were surprised when president obama asked hillary clinton to be his secretary of state following their tough campaigning in the 2008 presidential primary. but in the interview, both president obama and secretary clinton said they have a close friendship. >>> 7:16. sonya so toe sonya so toe my so toe mayor w